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shutvik [7]
3 years ago
14

Select the system that has the same solution as –2x+2y = -5, 5x — бу = 8

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0
The answer is the the second or B
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If a number is divisible by 4, is it also divisible by 8?
a_sh-v [17]

Answer:

yes

Step-by-step explanation:

since 8 = 4*2, any number of the form 8x can be written as 4*2x. so every number divisible by 8 is also divisible by 4.

6 0
3 years ago
F(x)=(x+2)^3-4<br> What is the slope?
kipiarov [429]
Use the slope-intercept y=mx+b to find slope
Slope=m
M=3
4 0
3 years ago
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A study found that out of 300 people 60% of them prefer to eat hamburgers rather than hot dogs. Find the 95% confidence interval
Lerok [7]

Answer:

(0.5446, 0.6554)

Step-by-step explanation:

As the sample is sufficiently large, the formula is used to estimate the proportion shown in the attached image.

Where:

P: sample proportion = 0.6

n: Sample size = 300

1-\alpha: Confidence level = 0.95

α: Significance = 0.05

Z_{\alpha / 2} = 1.96 *

* Obtained from the normal standard table.

When introducing these values in the formula shown in the image we obtain:

0.6 + 1.96 *\sqrt {\frac{0.6*0.4}{300}}

0.6 - 1.96 *\sqrt{\frac{0.6*0.4}{300}}

Finally, the confidence interval is:

(0.5446, 0.6554)

8 0
3 years ago
A rectangle with a width of w and a length of ? has a perimeter greater than 100.
ser-zykov [4K]

Answer:

Let L = length

Let w = width

Perimeter = 2L + 2w

L = 100

Perimeter > 400

2(100) + 2w > 400

200 + 2w > 400 is the inequality

Subtract 200 on both sides of inequality.

2w > 200

w > 100

The width is at least 100 centimeters

4 0
3 years ago
Solve for p If 16p=208. p=​
WARRIOR [948]

Answer:

13

Step-by-step explanation:

208 divided by 16=13 therefore

P=13

5 0
3 years ago
Read 2 more answers
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